Return a new string which is an unquoted version of str.
If str ends and begins with double quotes, they are stripped
off. Likewise if str ends and begins with angle brackets, they
are stripped off.
Parse address - which should be the value of some address-containing
field such as To: or Cc: - into its constituent
realname and email address parts. Returns a tuple of that
information, unless the parse fails, in which case a 2-tuple of
('', '') is returned.
The inverse of parseaddr(), this takes a 2-tuple of the form
(realname, email_address) and returns the string value suitable
for a To: or Cc: header. If the first element of
pair is false, then the second element is returned unmodified.
This method returns a list of 2-tuples of the form returned by
parseaddr(). fieldvalues is a sequence of header field
values as might be returned by Message.get_all(). Here's a
simple example that gets all the recipients of a message:
Attempts to parse a date according to the rules in RFC 2822.
however, some mailers don't follow that format as specified, so
parsedate() tries to guess correctly in such cases.
date is a string containing an RFC 2822 date, such as
"Mon, 20 Nov 1995 19:12:08 -0500". If it succeeds in parsing
the date, parsedate() returns a 9-tuple that can be passed
directly to time.mktime(); otherwise None will be
returned. Note that fields 6, 7, and 8 of the result tuple are not
usable.
Performs the same function as parsedate(), but returns
either None or a 10-tuple; the first 9 elements make up a tuple
that can be passed directly to time.mktime(), and the tenth
is the offset of the date's timezone from UTC (which is the official
term for Greenwich Mean Time)12.2. If the input
string has no timezone, the last element of the tuple returned is
None. Note that fields 6, 7, and 8 of the result tuple are not
usable.
Turn a 10-tuple as returned by parsedate_tz() into a UTC
timestamp. It the timezone item in the tuple is None, assume
local time. Minor deficiency: mktime_tz() interprets the
first 8 elements of tuple as a local time and then compensates
for the timezone difference. This may yield a slight error around
changes in daylight savings time, though not worth worrying about for
common use.
Optional timeval if given is a floating point time value as
accepted by time.gmtime() and time.localtime(),
otherwise the current time is used.
Optional localtime is a flag that when True, interprets
timeval, and returns a date relative to the local timezone
instead of UTC, properly taking daylight savings time into account.
The default is False meaning UTC is used.
Returns a string suitable for an RFC 2822-compliant
Message-ID: header. Optional idstring if given, is
a string used to strengthen the uniqueness of the message id.
Encode the string s according to RFC 2231. Optional
charset and language, if given is the character set name
and language name to use. If neither is given, s is returned
as-is. If charset is given but language is not, the
string is encoded using the empty string for language.
Note that the sign of the timezone
offset is the opposite of the sign of the time.timezone
variable for the same timezone; the latter variable follows the
POSIX standard while this module follows RFC 2822.
